aspect-ratio setting for image in overwritten pattern not working

[Drivingralle]

After building a syned pattern with an image (aspect-ration 16/9) and a headline and making both of them over writable. Add two of this to a page. Overwriting one of the instances.

Now the overwritten image doesn't use the aspect-ratio.
If you add any with and height values to the HTML of the overwritten image the aspect-ratio jumps into effect.

The size attributes and src-sets seem not be be added to the output.

[Drivingralle]

Effekt without size attributes

[Drivingralle]

Image with fake size attributes

[Drivingralle]

Tested in Playground with 6.6.1 and nightly. With TT4.

First seen this behavior in a child theme of "Hello".

[Drivingralle]

If the image overwriting the default is a SVG the behavior is as expected.